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Reviews (3)

Apr 29, 2019
Great power bank
Very good battery balancing and protection. The power output is OK but never got more than 2.5A out so charging laptop while is running is not an option /at least for my 17'' Toshiba Satellite / but for emergency laptop charge or just USB power bank is enough. The downside for high voltage output is that needs more than 100ma to stay on /cant stay permanently on for battery saving /. Overall is great power bank.

Oct 02, 2018
Works great. Thank you.
For everyone that have resolution problems,
the solution is to change the code from Adafruit_SSD1306.h file at arduino library folder. The display works great after comment the #define SSD1306_128_32 and uncomment #define SSD1306_128_64 lines.

Dec 19, 2019
Its good board after all
The shipment was very fast. I don't have time to use in real project, but it seems to work fine on some tested examples.